Alert archive / Louisiana / Flash Flood Watches in 2006
Flash Flood Watch 3, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood watch at Dec 29, 2006, 4:15 PM CST for 12 parishes in Louisiana; 5 counties in Mississippi. It took effect at Dec 30, 2006, 3:58 AM CST. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Dec 29, 2006, 4:15 PM CST (22:15 UTC)
- In effect from
- Dec 30, 2006, 3:58 AM CST
- Expired
- Dec 31, 2006, 3:51 AM CST
- In force
- 24 hr
- Issued by
- NWS New Orleans, LA
- Flood severity
- None
Counties Assumption Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, Pearl River County, MS, Pike County, MS, Walthall County, MS, Wilkinson County, MS
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.3 hours before the alert went out and 241 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 119 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 485 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 324 m²/s²
- 0-3 km storm-relative helicity
- 363 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New Orleans, LA wrote its last area forecast discussion before this flash flood watch went out at Dec 29, 3:57 PM CST, 18 minutes earlier.
Area forecast discussion, Dec 29, 3:57 PM CST, 18 minutes before
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</html>Hazardous weather outlook, Dec 29, 11:54 AM CST, 4 hours 21 minutes before
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Flash Flood Watches in Louisiana, 2006Flash Flood Watches in Mississippi, 2006Every flash flood watch in 2006
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.